Personal library and Undefined property $input

[eluser]luca89pe[/eluser]
Ty for your reply, didn't noticed i wrote that out the class declaration!!!!!!!!
But still not work

Code:

A PHP Error was encountered

Severity: Notice

Message: Undefined property: Login::$input

Filename: libraries/Login.php

Line Number: 22


Fatal error: Call to a member function server() on a non-object in /home/mhd-01/************************/codeIgniter/application/libraries/Login.php on line 22

i think this is because it doesn't show the dialog, so it doesn't get the input!
Why it doesn't show dialog